4.5" Silicone Coupler Pontiac Wall Size: 4 mm -

Wall Size: 4 mm - 5 mm

so that it can be opened up and gripped against the top part of the fitting

you might try trimming the SS slightly

you might end up with a situation where the SS needs to be trimmed down slightly

a 3-ply reducer has four layers of silicone plus three layers of reinforcement fabric

4.5" Silicone Coupler Pontiac Wall Size: 4 mm -This is a two foot long piece of silicone hose. It can be used as a straight section of intake or cut to any length. Applications: Joining your intake pipe to the throttle body assembly, air metering assembly, intercooler, BOV pipe, or turbo inlet outlet. Custom compressor, intercooler or inlet piping for turbo supercharged car Custom cold air intake for nonturbo car Replacement of all factory rubber parts These silicone parts can be used in trucks,